VEGAS Team Meeting
GB-137-hub
192.33.117.12##7144
434-817-6443# (telephone)
Attendees: Randy, Adam, Joe, Dave, Sam, Mark, Paul, Marty, Jason, Melinda
Agenda:
- Status of BOFs for Modes 2 and 3 (H16k)
- Tsys stability
- Modes 14/19
- fcenter shift
- non-constant baselines
- Scan to scan integration number variation
- astrid scripts to be used for testing vegas (in the context of M&C integration and regression tests)
- FTarget values
- Subbeam Nod
- Status of DIBAS Support
- Plans for test time
Meeting notes:
- Status of BOFs for Modes 2 and 3 (H16k)
- BOF rebuild by Hong, and installed for testing/calibration
- No need to do MMCM tests anymore since last update by Paul
- High priority tests (w/"spike finder")
- Tsys stability
- Tsys is higher during the first integration (GBTIDL high by a factor of two)
- Solved by clearing buffers after first integration?
- No test case required clearing the buffer but looks like the fix should work
- W/E data should have been affected
- Sam & Richard to look at fits issues
- Research if the counts are what is off by factor of two
- Modes 14 & 19
- Version 148 is ready and works in simulation
- Joe will test
- fcenter shift
- Removed from MR until Science consensus
- Medium Priority
- non-constant baselines:
- Scan to scan integration number variation
- Obs noted that w/30 sec integration only got 29 sec. integrations
- Data needs to be reviewed (Prestage)
- Actual count may vary within a small window
- Astrid scripts to be used for testing vegas
- simple scripts that exercise basic functions for M&C integration
- More involved for regression tests - team can help with VEGAS part of regression tests
- Solved? IFTarget values - Yup
- No problem with 3.5 GHz bandwidth
- Solved? Subbeam Nod - Yup
- Recommends shorter integration times (~0.2 sec) yields 5-10% time improvement
- Notes on VEGAS commissioning wiki page
- Spectrometer & VEGAS treated the same way, but only looks at VEGAS bank A
- Status of DIBAS Support
- No report other than pointing to github for ADC info
- Plans for test time
- Currently unscheduled request(s):
- non-constant baselines (Kobelski)
- Deep integration tests after successful Mode 2/3 tests (X-Q Band) (Frayer/Kobelski)
- Monday
- 1pm BOFs for Modes 2 and 3 (H16k) (Brandt/Kobelski)
- 3pm Version 148 tests (Mode 14 & 19) (Brandt)
- Tuesday
- Wednesday
- Thursday
Other
- Please make sure to properly code your timesheets for the current time period and going forward.
- Software engineers should be using a GBT ops software CM&E account - Account 893252
- Electronic engineers should be using a GBT ops electronics CM&E account - Account 432510
- Commissioning activities should be getting charged to hardware support and testing - Account 432510
- Scientists assisting with shared-risk commissioning should be charging an observer support account
- 432540 for the most part. Accounts 142020 (GB-based staff) and 142010 (CV-based staff) for when you are helping with overarching observing support (not problem solving, VEGAS specific)
--
MartyBloss - 2014-08-25